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EMISSION CONTROL ENGINE AND EMISSION CONTROL 17-76 EMISSION CONTROL GENERAL DESCRIPTION M1173000100314 The emission control system consists of the fol- lowing subsystems: • Positive crankcase ventilation system • Evaporative emission system • Exhaust emission control system DIAGNOSIS M1173000700112 SPECIAL TOOLS M1173000600193 SYMPTOM PROBABLE CAUSE REMEDY Engine will not start or hard Vacuum hose disconnected or damaged Repair or replace Malfunction of the evaporative emission Repair or replace Rough idle or engine stalls Vacuum hose disconnected or damaged. Repair or replace Malfunction of the positive crankcase Replace Malfunction of the purge control system Check the system; If there is a Excessive oil consumption Positive crankcase ventilation line Check positive crankcase TOOL TOOL NUMBER AND SUPERSESSION APPLICATION MB995061 MLR6890A Inspection of purge MD998770 MD998770-01 or General Removal/installation of |